It was the 100th launch from Pad 39-A, but a Dragon capsule being re-used from CRS-4 was the star of the launch. At 5:07 PM EDT on June 3, 2017, SpaceX launched a Falcon-9 rocket with about 6,000 pounds of research equipment, cargo and supplies headed towards the International Space Station.

For the first time, SpaceX has successfully re-used a Falcon 9 first stage. At 6:27 PM on Thursday March 30, 2017, Falcon 9 Booster #21 lifted the SES-10 satellite from Pad 39A. Less than 10 minutes later, the Falcon first stage landed on the SpaceX drone ship in the Atlantic ocean. Shortly thereafter, SpaceX also recovered one-half of the payload fairing, another first in space flight.